Electrical transmission or interconnection systems – Switching systems – Plural switches
Patent
1989-05-04
1990-12-11
Jennings, Derek S.
Electrical transmission or interconnection systems
Switching systems
Plural switches
307115, 307242, 307480, H01H 4700
Patent
active
049773321
ABSTRACT:
A power switching apparatus is provided with a plurality of power switching elements in which each power switching element is configured to receive an input signal, a carry-in signal and two partial duty cycle signals. The power switching element is also configured to provide an output signal and a carry-out signal. A power switching apparatus made in accordance with the present invention comprises a plurality of such power switching elements associated together with each power switching element having it carry-in signal being provided by the carry-out signal of another preceding power switching element and, additionally, having it carry-out signal being associated with the carry-in signal of a subsequent associated power switching element. The combination of power switching elements provides a power switching apparatus with a plurality of inputs and a plurality of outputs wherein the plurality of outputs are generally equally distributed between two alternative wave forms. Each of the signal processing elements of the present invention can be configured to provide a continuous output signal following the initiation of an input signal wherein the continuous output signal is maintained for a predetermined period of time after which the output signal takes the form of a partial duty cycle signal.
REFERENCES:
patent: 3800299 (1974-03-01), Panther
patent: 4327693 (1982-05-01), Busser
patent: 4479161 (1984-10-01), Henrich et al.
patent: 4720762 (1988-01-01), Estes
patent: 4764840 (1988-08-01), Petrie et al.
patent: 4818988 (1989-04-01), Cooperman et al.
Jennings Derek S.
Lanyi William D.
Sundstrand Corporation
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